Home / 283,034.25-390,587.27-155,707.11

Finding the Fourth Proportional to 283,034.25, 390,587.27 and 155,707.11

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Solution

The fourth proportional to 283,034.25, 390,587.27 and 155,707.11 is: 214,875.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,034.25 : 390,587.27 = 155,707.11 : x
  2. Step 2: Convert to fraction form
    283,034.25/390,587.27 = 155,707.11/x
  3. Step 3: Cross multiply
    283,034.25x = 390,587.27 × 155,707.11
  4. Step 4: Simplify right side
    283,034.25x = 60,817,214,235.95
  5. Step 5: Solve for x
    x = 60,817,214,235.95/283,034.25
  6. Step 6: Final answer
    x = 214,875.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.